just got me a '67 Barracuda

Nice find, it looks like there`s a lot of miles left in her. Do you have a nice stream of fuel leaving the fuel pump? Try disconnecting the line after the fuel pump and run the line into a can. Crank over the engine and see what kind of fuel flow you get. The stream should be full and strong. You can check the slack in the chain by rotating the crank back and forth and watching your rotor. If the crank moves 10 degrees or more without movement in the rotor then it might be time for a new chain. Keep us posted on what you find.